Plácido, D. ., Fernandes, C. ., Isidro, A. ., Carrondo, M. ., Henriques, A. ., & Archer, M. . (2008). Auto-induction and purification of a Bacillus subtilis transglutaminase (Tgl) and its preliminary crystallographic characterization. Protein Expression and Purification, 59(1), 1-8. https://doi.org/10.1016/j.pep.2007.12.004 (Original work published 2008)